Harry v



(No Model) H. v. MOORE. MOLDBRS APPARATUS.

No. 576,304.- Patented Jan. 12, 1897.

Inventor Attorney NITE STATES HARRY V. MOORE, OF HAMILTON, OHIO,ASSIGNOR TO F. & L. KAI-IN &

BROS, OF SAME PLACE.

MOLDERS APPARATUS.

SPECIFICATION forming part of Letters Patent No. 575,304, dated January12, 1897.

- Application filed June 27,1895.

To all whom, it may concern:

Be it known that I, HARRY V. Moons, of Hamilton, Butlerc0unty,0hio, haveinvented certain new and useful Improvements in Molders Apparatus, ofwhich the following is a specification.

This invention pertains to improvements in molders apparatus for use inmetal founding, and the invention will be readily understood from thefollowing description, taken in connection with theaccompanyingdrawings, in which I Figure 1 is a side elevation of astove-top produced by the aid of my improved apparatus; Fig. 2, a rearelevation of the pattern employed in producing the casting representedin Fig. 1; Fig. 3, a vertical section of half of the mold with thepattern in place therein and ready for withdrawal therefrom; Fig. 4, asimilar section of the half-mold in condition after the pattern has beenwitlr drawn and the chill-cores inserted; Fig. 5, a perspective view ofone of the chill-cores, and Fig. 6 the plan of one of the chill-cores.

In the drawings, 1 indicates a top casting for a heating-stove; 2, thepipe'at the top thereof; 3, air-ports in a vertical wall portion of thestove-top, such openings being usually covered by means of a slidingregister; 4, the pattern to be employed in producing the mold for thecasting represented in Fig. 1, this pattern being identical with thecasting to be produced except as regards the matter of shrinkage andanother detail to be now referred to; 5, small centering-holes throughthat vertical wall portion of the pattern where the air-ports 3 in thefinished casting are to come, these small holes 5 corresponding inposition with the centers of the air-ports 3; (5, a disk of metal havingan exterior form and size corresponding with the air-ports 3, to beformed in the pattern, and having a thickness corresponding with thethickness of the wall of the pattern at these air-ports and having theirperipheries formed with a taper or draft; 7, a pin projecting from theface of disk 6 and having a diameter about that of holes 5 in thepattern; 8, a guide-mark on disk 6; 9, the half-flask in which thehalf-mold is formed; 10, the sand therein forming the half-mold; 11, anawl or Serial No. 554,203. (No modelJ is in the condition indicated inFig. 3 and before withdrawing the pattern, the awl or centering-pin 11is punched through each of the holes 5, thus punching a hole in themoldsand outside the pattern. The awl is then removed and the patternwithdrawn, as usual. The chill-cores 6 are then put in place with pins 7in the holes previously punched in the sand by the awl, the chill-coresbeing pressed up snugly against the sand-wall of the mold. This bringsthe peripheries of the chill-cores concentric with the pointsrepresented by the holes 5 in the pattern, and consequently gives theexact proper location to the chill-cores. The chill-cores will have suchfacial curvature as may be called for by the curvature of the wall ofthe casting in which the air-ports 3 are to be cast. It follows that thechillcores must be put in place with the proper portion of their edgesuppermost. Guidemarks 8 serve in determining the proper position for thechill-cores. When the chillcores are in place, then the flask is closedin the usual manner. Then the mold is thus closed, the chill-coresextend from outer wall to inner Wall of the mold-space, and when themetal is poured these cores will form the airports in the casting. henthe casting is shaken out, the chill-cores come with it and may beeasily knocked out for reuse, and the removal of the chill-cores will berendered easier if they have a Wash of blacking or clay applied to thembefore being put into the mold.

I claim as my invention- In a molding apparatus, the combination,substantially as set forth, of a half flask, a pattern therein having aportion substantially at right angles to the face of the half flask andhaving a hole through such portion projecting from its outer face of asize corresponding with said awl and hole.

HARRY V. MOORE.

Vitnesses:

ABRAHAM ROLLINGER, E. R. SHIPLEY.

